A) 50 B) 51 C) 23 D) 60
A) 1 B) 3 C) 17 D) 7
A) 5 B) 9 C) 103 D) 45
A) 33 B) 3 C) 4 D) 15
A) Transition Metals B) Alkali Metals C) Alkaline Earth Metals D) Halogens E) Noble Gases
A) 2 B) 7 C) 14.007 D) 14
A) 137 B) 56 C) 2 D) 6
A) 2 B) 6 C) 7 D) 1
A) Phosphorus is a non-metal gas. B) Tellurium is a solid metalloid. C) Mercury is a solid metal. D) Chlorine is a liquid non-metal.
A) 96 B) 6 C) 42 D) 5
A) 4 B) 7 C) 2 D) 3
A) proton/+, neutron/-, electron/no charge B) proton/+, electron/-, neutron/uncharged C) proton/+, electron/neutral, neutron/- D) proton/-, electron/+, neutron/no charge
A) protons and neutrons B) neutrons and electrons C) protons and orbits D) protons and electrons
A) Phosphorus and Silicon B) Mercury and Thallium C) Argon and Krypton D) Carbon and Boron
A) atoms are tiny solid spheres B) electrons orbit totally randomly around the nucleus C) the atom is a positively charged sphere with electrons embedded in it D) the atom is mostly empty space
A) group B) nucleus C) region D) period
A) Magnesium B) Chlorine C) Lithium D) Beryllium
A) period number B) number of neutrons C) group number D) number of protons
A) the mass number minus the atomic number B) the same as the number of electrons C) greater than the mass number D) the same as the number of energy levels
A) Number of Neutrons B) Period Number C) Group Number D) State of Matter
A) Carbon B) Francium C) Manganese D) Nitrogen
A) No, every single Carbon atom has exactly 6 protons. An atom's atomic number gives it its identity. B) Yes, some Carbon atoms have 6 protons, some have 7 protons.
A) by losing protons B) By adding or losing electrons C) by adding electrons D) by adding protons
A) by losing protons B) by adding electrons C) by adding protons D) by losing electrons
A) by losing electrons B) by losing protons C) by adding electrons D) by adding protons
A) by adding or losing neutrons B) by adding electrons C) by adding protons D) by adding neutrons
A) same as the mass number B) mass number divided by 2 C) same as the atomic number D) difference between the atomic and mass number
A) the same as the atomic number B) the difference between the mass and atomic number C) the same as the mass number D) the same as the number of neutrons
A) Hg and C B) Mg and F C) B and O D) Na and Li
A) Mg and Cl B) F and At C) Ba and Ra D) Li and Po
A) The transition metals B) The noble gases C) The alkali earth metals D) The alkali metals E) The halogens
A) The transition metals B) The alkali metals C) The noble gases D) The halogens
A) 8 B) 1 C) 17 D) 18 E) 4
A) how reactive they are B) how many electrons there are C) how many protons there are D) how many electron levels there are
A) the number of protons B) how many electrons the atom has C) the number of neutrons D) how many valence electrons the atom has
A) Iron B) Sodium C) Silver D) Fluorine E) Mercury
A) H B) Li C) Au D) Al E) F
A) I B) Li C) Al D) Cs E) Mg
A) the number of electrons B) the number of protons C) the number of neutrons
A) Bohr B) Newton C) Lewis D) Dalton E) Mendeleev |